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dewey.info seems to be dead, we have also checked this. 2015-06-12 16:57 GMT+03:00 Péter Király <[log in to unmask]>: > Hi Sergio, > > As part of eXtensible Catalog we developed a Dewey module for Drupal, > which takes a Dewey number, and use OCLC's dewey.info to fetch the > textual description of the part. When it was created the service > contained only 3 levels of the classification system, since then they > went ahead, and now it is deeper. > > You can find the sorce here: > http://cgit.drupalcode.org/xc/tree/xc_dewey/xc_dewey.module?h=7.x-1.x > > Maybe it helps you. > > Regarding to UDC: it is much a harder task, and when I worked with it, > I run into a blocking problem, which is that UDC was not licenced as > freely usable, and I was not able to get a licence to use it in an > open source project. There were some other problems as well: UDC > changed from time to time, and sometimes it means, that a given > classification code means this thing in a given point of time, and > that thing some years later. The MARC catalog I worked with did not > contain any information about the UDC versions, so the accuracy of the > tool was not guaranted (of course you can do some intelligent > guessing). And the last problem was, that on contrary to the Dewey > classification UDC contains sometime very lengthy descriptions instead > of one or two words. Semantically it is OK, but makes the UI design a > little bit hard, and if you want to search for the textual > description, you'll end up sometimes with a "noisy" result set. > Otherwise to handle the operators, the subclasses, and all the nice > things UDC provides is a very interesting challange. > > Cheers, > Péter > > > 2015-06-12 12:59 GMT+02:00 Sergio Letuche <[log in to unmask]>: > > thank you very much for your quick reply, dear Stefano, > > > > i appreciate it > > > > 2015-06-12 13:47 GMT+03:00 Stefano Bargioni <[log in to unmask]>: > > > >> Hi, Sergio: > >> maybe this article [1 abstract] [2 English text] can give you some basic > >> ideas. We added a lot of DDC info in our Koha catalog two years ago. > >> HTH. Stefano > >> > >> [1] http://leo.cineca.it/index.php/jlis/article/view/8766 > >> [2] http://leo.cineca.it/index.php/jlis/article/view/8766/8060 > >> > >> On 12/giu/2015, at 12:03, Sergio Letuche <[log in to unmask]> > wrote: > >> > >> > hello community! > >> > > >> > we are facing this challenging issue. We need to complete for a vast > >> amount > >> > of records, the dewey, UDC info, has anyone had any experience with > this? > >> > We need some way (via modeling? mahout?) to try and discover these > >> values, > >> > based on some text, found in the records' metadata, and then auto > >> complete > >> > these values. > >> > > >> > I would appreciate any feedback, if there is any opensource tool you > have > >> > used for this purpose, or if you are aware of any best practice for > doing > >> > this task. > >> > > >> > Best > >> > > >> > >> > >> __________________________________________________ > >> Il tuo 5x1000 al Patronato di San Girolamo della Carita' e' un gesto > >> semplice ma di grande valore. > >> Una tua firma aiutera' i sacerdoti ad essere piu' vicini alle esigenze > di > >> tutti noi. > >> Aiutaci a formare sacerdoti e seminaristi provenienti dai 5 continenti > >> indicando nella dichiarazione dei redditi il codice fiscale 97023980580. > >> > > > > -- > Péter Király > software developer > GWDG, Göttingen - Europeana - eXtensible Catalog - The Code4Lib Journal > http://linkedin.com/in/peterkiraly >